Yes, it's the same. In later collections lots of Carolan's tunes had 'Planxty' added erroneously. A planxty seems to have been just a tune Carolan made for a patron. It's the same with Colonel John Irwin, which became, in later collections, Planxty Irwin, The Two William Davises, which became wrongly titled as Planxty Davis or Planxty Davy, etc etc. Few of the original titles were called Planxty. If you go to my website - http://ianhp.tripod.com - you'll find a link to a great Carolan website (sorry, remember my own URL offhand but not the Carolan one)